<template>
  <el-breadcrumb class="app-breadcrumb" separator="/">
    <transition-group name="breadcrumb">
      <el-breadcrumb-item v-for="(item, index) in levelList" :key="item.path">
        <span v-if="item.redirect === 'noRedirect'" class="no-redirect">{{
          item.meta.title
        }}</span>
        <span v-else-if="item.meta.title == '首页'" class="curr"></span>
        <span v-else class="curr">{{ item.meta.title }}</span>
      </el-breadcrumb-item>
    </transition-group>
  </el-breadcrumb>
</template>

<script>
export default {
  data() {
    return {
      levelList: null,
    };
  },
  watch: {
    $route(route) {
      // if you go to the redirect page, do not update the breadcrumbs
      if (route.path.startsWith("/redirect/")) {
        return;
      }
      this.getBreadcrumb();
    },
  },
  created() {
    this.getBreadcrumb();
  },
  methods: {
    getBreadcrumb() {
      // only show routes with meta.title
      let matched = this.$route.matched.filter(
        (item) => item.meta && item.meta.title
      );
      const first = matched[0];

      // if (!this.isDashboard(first)) {
      //   matched = [{ path: '/index', meta: { title: '首页' }}].concat(matched)
      // }

      this.levelList = matched.filter(
        (item) => item.meta && item.meta.title && item.meta.breadcrumb !== false
      );
    },
    isDashboard(route) {
      const name = route && route.name;
      if (!name) {
        return false;
      }
      return name.trim() === "Index";
    },
    // handleLink(item) {
    //   const { redirect, path } = item
    //   if (redirect) {
    //     this.$router.push(redirect)
    //     return
    //   }
    //   this.$router.push(path)
    // }
  },
};
</script>

<style lang="scss" scoped>
.app-breadcrumb.el-breadcrumb {
  display: inline-block;
  font-size: 16px;
  // font-family: ''等线'';
  line-height: 14px;
  padding-top: 10px;
  margin-top: 10px;
  // margin-left: 18px;
  .no-redirect {
    color: #cccccc;
    font-weight: 500;
    // cursor: text;
  }
  .curr {
    font-weight: 500;
    color: #666666;
  }
}
</style>
